package ltd.dujiabao.springcloud.dao;

import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

/**
 * @author : DuJiabao
 * @Project : springcloud
 * @Time : 2021/5/26 21:40
 * @Desc :
 */
@Mapper
public interface StorageMapper {
  int decrease(@Param("productId") Long productId, @Param("count") Integer count);
}
